Arbitrary file read via HLS path traversal
Published Dec 13, 2023 · Updated Aug 2, 2024
Path traversal in Audiobookshelf 2.4.3 and earlier allows remote authenticated users to read arbitrary local files through the /hls endpoint. HlsRouter joins attacker-controlled stream and file parameters beneath StreamsPath, then passes the normalized path to sendFile without verifying that it remains inside that directory. Any authenticated account can retrieve files readable by the server process, causing confidentiality loss without file modification or service interruption.
Summary
What happened
Path traversal in Audiobookshelf 2.4.3 and earlier allows remote authenticated users to read arbitrary local files through the /hls endpoint. HlsRouter joins attacker-controlled stream and file parameters beneath StreamsPath, then passes the normalized path to sendFile without verifying that it remains inside that directory. Any authenticated account can retrieve files readable by the server process, causing confidentiality loss without file modification or service interruption.
The record
- CVE
- CVE-2023-47624
- Published
- Dec 13, 2023
- Updated
- Aug 2, 2024
- Vendor
- advplyr
- Product
- Audiobookshelf
- Classifications
- CWE-22, T1005
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 13, 2023CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=<= 2.4.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- GitHub Security Lab HLS path-traversal proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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